﻿/*
 *  ChgDoc CMS - GNU General Public License, version 3 (GPL-3.0)
 *  Copyright (C)  2012. Ian Quigley
 *  
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Text;

namespace ChgDoc.Extension
{
    public static class StringBuilderExtensions
    {
        /// <summary>
        /// Join an enumerable list of strings with a seperator
        /// </summary>
        /// <param name="builder">Extended StringBuilder</param>
        /// <param name="seperator">seperator pattern (i.e. ", ")</param>
        /// <param name="list">List of strings to join</param>
        public static void Join(this StringBuilder builder, string seperator, IEnumerable<string> list)
        {
            var enumerator = list.GetEnumerator();
            if (!enumerator.MoveNext())
                return;

            while (true)
            {
                builder.Append(enumerator.Current);
                if (!enumerator.MoveNext())
                    return;

                builder.Append(seperator);
            }
        }

    }
}